<?php
    namespace name1;

    include_once 'test2.php';

    const NUMBER = 11;
    class test1{
        public const Number1=10;

        public static function show(){
            return "class test1<br>";
        }
    }

    var_dump(NUMBER); echo '<br>';
    var_dump(Test1::Number1); echo '<br>';

    echo test1::show();
    echo (new \name2\test2)->show();